what version of sugar are you using, if its 6.5+ by default then only the edit button is shown with a dropdown next to it for all the other available actions in detail view and this is where the "Print as PDF", "Email PDF", "Email Quotation" etc will be.
If you want to to show the buttons across the top as it does in the demo, you can go to admin->system Settings and uncheck 'Display actions within menus' and then globally throughout sugar in detail view and sub-panels it will show all the buttons, not a drop down
Let me know if you still can't find the buttons after trying the above
6.5.5